{"id":"vidhyamitra:day:2209-10-04:en","page_class":"VM-1-day","url":"https://vidhyamitra.com/day/2209-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2209-10-04","date_display":"October 4, 2209 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2209,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2528156.770833,"kali_year":5311,"ahargana":1939691.2708,"sun":{"sidereal_longitude":162.5029,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":211.231,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":48.7281,"elapsed_within_tithi_degrees":0.7281},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.231,"elapsed_within_degrees":11.231},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.7339},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2209,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2528156.770833,"ahargana":1939691.2708,"kali_year":5311,"ayanamsa_lahiri":26.7831,"grahas":{"sun":{"sidereal_longitude":163.75847699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":209.61997700000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":-1.9292},"mars":{"sidereal_longitude":155.00417700000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":172.55877699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":237.45367699999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":151.038677,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":74.80057699999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":5.822,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":185.822,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2209,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2528156.770833,"kali_year":5311,"ahargana":1939691.2708,"sun":{"sidereal_longitude":162.5029,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":211.231,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":48.7281,"elapsed_within_tithi_degrees":0.7281},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":211.231,"elapsed_within_degrees":11.231},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.7339},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.929,"elongation":48.728},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.929,"opposition_distance":131.272}},"eclipse_window_40days":[{"offset_days":10,"type":"lunar","occurs":true,"moon_latitude":-1.175,"opposition_distance":2.221}]},"calendars":{"vikram_samvat":2266,"vikram_samvatsara":"Dundubhi","saka_samvat":2131,"saka_samvatsara":"Saumya","bengali_samvat":1616,"malayalam_era":1385,"nanakshahi_year":740,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Pañcamī · Vikram 2266 Dundubhi · Śaka 2131 Saumya"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"valid_from":"2209-10-04T00:00:00Z"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate; Vidhyamitra substrate"},"seo":{"title":"Pañchāṅga October 4, 2209 CE · Vidhyamitra","description":"Vedic pañchāṅga for October 4, 2209 CE: Śukla Pañcamī · Viśākhā.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/day/2209-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/day/2209-10-04","sa":"https://sa.vidhyamitra.com/day/2209-10-04","hi":"https://hi.vidhyamitra.com/day/2209-10-04","x-default":"https://vidhyamitra.com/day/2209-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-25T00:32:43.035Z","verification":{"type":"multi-marker","confidence":"canonical"}}],"meta":{"generated_at":"2026-05-25T00:32:43.035Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa"}}}